1. In the off state, press and hold for 3 seconds to turn on; in the power on state, press and hold for 3 seconds to turn off;

2. (Automatically connect back to the last Bluetooth handheld device after booting, if it is the first time, it will enter the self-matching mode immediately)

3. After pairing with the Bluetooth of the handheld device, you can execute it while playing the audio. Short press “Pause” and short press “Play”. In the call state, just click “Receive Call”, long press “Reject Call”, and double-click “Call Recent Call”. Right button):

4. Play Audio Short press “Next Song” and press “Add Volume”. Left button): Play audio Short press “Previous song”, long press “Volume down”.

5. Power supply: Bluetooth cap built-in high-performance polymer 200MAH battery, the battery board has charging protection for the battery, and can work while charging. (The red light will be on when charging, and the red light will be off after charging)